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An air plane springs a leak while in flight; air in the cabin is 22oC and 0.8 bar, pressure escapes to the outside, where the pressure is 0.15 bar. Suppose the expansion is adiabatic, calculate the
Solutions of silver nitrate and sodium carbonate react to form solid silver carbonate and a solution of the sodium nitrate. A solution having 3.50 g of sodium carbonate is mixed with one h
Determine the relation between the strength of the acid and the pka of an acid? Calculate the pka. For an acid HA, the concentration of HA and A- are 0.075 and 0.025, respectively, at pH 6.0.
Calculate the percent by mass of cuso4 * 5H20 in the mixture when a mixture of cuso4 * 5H2O MgSO4 * 7H2O is heated until all the water is lost if 5.020 g of the mixture gives 2,988 of the anhydrous
Try to visualize set of all points (x,y,z) in the coordinate space which are twice as far from pts Q(0,3,0) as from pt P(0,0,0). Utilize Distance formula to illustrate that set is sphere, and deter
Calculate the percent yield of a reaction in which 282 g phosphorus trichloride reacts with excess water to form aqueous phosphorus acid (H3PO3) and 119 g HCl?
A reaction combines 133.484 g of lead (II) nitrate with 45.010 g of sodium hydroxide. Pb(NO3)2 (aq) + 2NaOH (aq) Pb(OH)2 (s) +2NA
The combustion of 135mg of a hydrocarbon produces 135mg of H2O and 440mg of CO2. The molar mass of the hydrocarbon is 270 g/mol. Calculate the molecular formula of this compound.
Determine the number of grams of water were in the sample if a 45g piece of ice at 0^celcius is added to a sample of water at 8^celcius. All of the ice melts and the temperature of the water decrea
A sample which is having of 70.5mg of potassium phosphate is added to 15.0L of0.050M silver nitrate resulting in the formation of a precipitate.
Charlie and Jean are trying to haul the large sign to roof of the antique store. Determine magnitude of force pulling sign up from ground?
What is the maximum number of moles and grams of H2S that can form when 145 g aluminum sulfide reacts with 129 g water?
Determine the fraction of CH4 in the mixture when a mixture of methane (CH4) and ethane (C2H6) of mass 13.43 g is totally burned in the oxygen. If the total mass of CO2 and H2O formed is 64.84g.
I(sub)0 is the minimum level of comparison. How many times greater was intensity of 1 earthquake R_1=8.8, than another earthquake R_2=6.8?
Discuss why is ethanol a bad choice for re-crystallizing ophthalmic acid? Why should water be used instead?
Write down a complete mechanism for the epoxidation of1-methylcyclohexene with peracetic acid. The reaction complete with sodium methoxide in the methanol. Show all products
Combustion analysis of a 13.42-g sample of estradiol (which contains only hydrogen, oxygen and carbon) formed 39.01 g CO2 and 10.65 g H2O. When the molar mass of estradiol is 272.38 g/mol, determine
Determine the final temperature of the water in degrees Celsius when a 150 ml sample of water at 290.8 K was heated for 9 mins 7 sec so as to give constant temperature increased of 3.0 F/min.
Chester and kirby are 2 labrador retrievers who, when they are not eating or thinking about eating. Which dogs obtains ball first and by how much time?
Determine the numbers of isomers are there in C6H12O6? This is glucose and there are two? The D and L? Is this right? Explain in detail.
Explain did the student obtain a solution that was less concentrated or more concentrated than the 1.00 M solution they were told to make?
A Cow's tender had rinsed fertilizer residue into water trough after the spreading fertilizers on his ranch. About 3 gallons of water remained in the water trough when the irrigation specialists arr
Methyl tert-butyl ether (a compound of H, C and O) improve the performance of the gasoline. When 12.1 g of the compound are burned in apparatus, 30.6g of CO2 and 14.8 g H2O are formed.
Octane, C8H18, is a component of gasoline. Complete combustion of octane yields H2O and CO2. In complete combustion formed H2O and CO, which not only reduced the efficiency of the engine using the f